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am exercitiul 1000+1/1000+2/1000+3/1000+.....+999/1000 . stie cineva ?


Răspuns :

[tex]S=1000+ \frac{1+2+3+...+999}{1000} = 1000+\frac{ \frac{999*1000}{2} }{1000}= 1000+ \frac{999}{2} = \frac{2999}{2} [/tex]